Yep, it would definitely be kewl if someone took the initiative and coded some type of netspeed benchmark app for the 68k amiga, and then a corresponding "speedtest server app" that could be run on the "other end" whether that be windows, linux, amiga, etc..
This would allow you to set up controlled tests which could produce very relevant speed comparissons given the known nature of the LAN/WAN you were testing over..